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Chapter 4: Motherboard Connections
NC-SI Header for IPMI Support
A Network-Controller Sideband Interface (NC-SI) header is located at JNCSI1 on the
motherboard. Connect an appropriate cable from this header to an add-on card to provide the
out-of-band (sideband) connection between the onboard Baseboard Management Controller
(BMC) and a Network Interface Controller (NIC) for remote management. For the network
sideband interface to work properly, you will need to use a NIC add-on card that supports
NC-SI and also need to have a special cable. Please contact Supermicro at
www.supermicro.
com
to purchase the cable for this header. Refer to the table below for pin definitions.
NC-SI Header for IPMI Support
Pin Definitions
Pin#
Definition
Pin#
Definition
1
CLK_50MHz
2
Ground
3
NCSI_CRS_DV
4
Ground
5
NCSI_RXD0
6
Ground
7
NCSI_RXD1
8
Ground
9
NCSI_TXD0
10
Ground
11
NCSI_TXD1
12
Ground
13
NCSI_TX_EX
14
NCSI_PRESENT_N
15
NC
16
NC
17
5V STBY
18
5V STBY
19
5V STBY
20
5V STBY
21
5V STBY
22
NC
Inlet Sensor Header
This header (JSEN1) allows BMC to monitor thermal inlet temperature. A special module is
required. Please contact Supermicro at
www.supermicro.com
to purchase the module for this
header. Refer to the table below for pin definitions.
Inlet Sensor Header
Pin Definitions
Pin#
Definition
1
SMBDAT
2
Ground
3
SMBCLK
4
3.3V STBY